Let me just say very good presentation. Kudos JMHO HO.now I think you're talking about the ops coin. I agree it's a nice piece and I too would not mind having it in my collection. And you have no argument by me on your statement. What I've been able to find out as the sheet come out of the press and is set to the roller it is also scanned for defects. And a majority of the defects are detected by scan. And is handled properly at the foundry. But in the case of Dave's coin that is an internal defect. And not detectable. Only after being hit by the die causing that area of contamination to crack along the weak points. And after a closer visual examination somewhere not too far in the past that missing piece of brass was actually pulled off. The espressos brass is a good indicator of that in the damage area. And 90% of the surrounding coin is still 95% brass and 5% zinc.Solid I presume with no missing pieces. It's hard to tell without a full photo.All I'm saying using the word lamination in describing older coins I personally have a problem with. Newer coins no big problem.
Some say lamination others say delamination. Looks like an improper alloy mix (different colored streaks) that is the cause of the lamination or delamination.
I have a certain individual "blocked" too, and I don't even have to know that he is posting to this thread or not to know that we are talking about the same person. Chris
My mistake, I read a lot of things on here and sometimes things gets a little twisted. To my knowledge the newer coins as well are not "Lamination" as you use it. Modern CENTS have a zinc core that is "Plated" with copper to give it color and to prevent corrosion. Again this meets the criteria for Clad or Cladding. The plating process is entirely different than layering and bonding different metals in a rolling press. I think you are still confusing the term "Laminating or Layering" with what the trade means by "Lamination".
You know for someone who has me on his ignore you seem to show up a lot. I just wish they'd put in a block so I can keep you off of all threads, PS.Hey genius. Unfortunately coin talk does not have block. There's a big difference between ignore and a block. Ignore means you can come on in and run your mouth a block prevent you from doing that.I see you can still talk the talk but you can't do the walk.And Chris what little respect I have for you. You do speak your mind.
And that's the relevant point. This is the language numismatics uses to describe this feature. Doesn't matter if that term is used with a slightly different meaning elsewhere; what matters is what we use the term for in numismatics. Refusing to use universally-accepted language (well, universally accepted by those with experience) makes it very much more difficult to teach those who don't have that experience yet.
@usmc60 Here is a laugh for you. Based on the nonsense you often post you have been one of only two members I ever considered ignoring - and I don't believe there should be such an option that infringes on the free exchange of opinions. Ignorance is entertaining and it begs for help.
I'd opine that the die cracks should be raised, not indented into the metal. I have a decent bunch of die cracked coins and they all have the same appearance. As on this St. Helena coin. Sent from my XT1254 using Tapatalk